Ta da! Melissa Joan Hart is so proud of her 40-pound weight loss, that the ABC Family star has been all about baring her bikini body recently. The Nutrisystem spokesperson strips down to a coral bikini in new photos taken from her most recent photoshoot for the weight loss company.

"It's not everyday I like to show a lot of skin," 37-year-old Hart said of her hot bod, "but these days, I'm feeling confident." In the new pics, the "Melissa & Joey" star's toned legs and taut tummy are on full display to showcase her significant weight loss since the birth of her youngest son Tucker, 18 months.

The mom to Mason, 8, Braydon, 5, and baby Tucker gained 60 pounds during her third pregnancy. "I was so sick of things not fitting properly," Hart told Us Weekly last December, which prompted the star to go on Nutrisystem in February 2013.